package com.itheima.service.Impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.common.CustomException;
import com.itheima.dao.CategoryMapper;
import com.itheima.pojo.Category;
import com.itheima.pojo.Dish;
import com.itheima.pojo.Setmeal;
import com.itheima.service.CategoryService;
import com.itheima.service.DishService;
import com.itheima.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {
   @Autowired
   private DishService dishService;
   @Autowired
   private SetmealService setmealService;

    @Override
    public void remove(Long id) {

        LambdaQueryWrapper<Dish> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(Dish::getCategoryId,id);
        int count1 = dishService.count(wrapper);

        if (count1>0){
            throw new CustomException("当前分类下关联了菜品，不能删除");
        }

        LambdaQueryWrapper<Setmeal> wrapper2 = new LambdaQueryWrapper<>();
        wrapper2.eq(Setmeal::getCategoryId,id);
        int count2 = setmealService.count(wrapper2);

        if (count2>0){
            throw new CustomException("当前分类下关联了套餐，不能删除");
        }
        super.removeById(id);
    }
}
